Multiple playable characters

I have 2 characters and i have it so i can switch between the characters and use them as playable characters. So what i am stuck on is i need to be able to have the non posssessed character follow the possessed character in blueprint preferably. Thanks guys

all you would need to do is on event unpossessed start a behavior tree, and in posses stop the tree. In the tree all you would need to do is check to see how far the player is and if he’s far enough move to him.

this is my current set up for starting and stoping the behavior tree but its not starting the behavior tree again